进不去外部中断，看配置也没什么问题啊

2022-08-20 15:28:17 251 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

28335GPIO及外部中断配置介绍弄了两周终于把28335的启动流程、寄存器及中断向量表的映射方法、内存的划分等有了一个全面的了解，今天看到久违的LED灯的闪烁，顿扫阴霾。特在此总结下28335GPIO及外部中断配置介绍。其实对于一个微控制器，只要能够独立实现这两个功能，也算是入门了。一、GPIO口介绍外界二进制信息（数字量）要被CPU处理，要给存储器存放，就需要外界信息源与两者之间的交换接口，这样的交换接口若用来阅读详情

这是程序各位大神帮看看

void Y_X_GPIO(void)

{
GPIO_InitTypeDef GPIO_InitStructure;

   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD ,ENABLE);//Ê¹ÄÜPORTDÊ±ÖÓ

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11| GPIO_Pin_12| GPIO_Pin_13|GPIO_Pin_14 ;// ÏÞÎ»
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //ÉèÖÃ³ÉÉÏÀÊäÈë
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);//³õÊ¼»¯GPIOD5

}

void Y_X_ST0P(void) //YÖáÏÞÎ»¿ª¹Ø
{

EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);

   Y_X_GPIO();

   EXTI_ClearITPendingBit(EXTI_Line11);
EXTI_ClearITPendingBit(EXTI_Line12);
EXTI_ClearITPendingBit(EXTI_Line13);
EXTI_ClearITPendingBit(EXTI_Line14);

GPIO_EXTILineConfig(GPIO_PortSourceGPIOD , GPIO_PinSource11 ); //½«GPIO ÓëÖÐ¶ÏÓ³ÉäÆðÀ´
GPIO_EXTILineConfig(GPIO_PortSourceGPIOD , GPIO_PinSource12 );
   GPIO_EXTILineConfig(GPIO_PortSourceGPIOD , GPIO_PinSource13 );
GPIO_EXTILineConfig(GPIO_PortSourceGPIOD , GPIO_PinSource14 );

   EXTI_InitStructure.EXTI_Line=EXTI_Line11; //ÖÐ¶ÏÏß±àºÅ È¡Öµ·¶Î§ EXTI_Line0~EXTI_Line15
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Rising; //´¥·¢Ä£Ê½ ÏÂ½µÑØ´¥·¢Falling ÉÏÉýÑØ´¥·¢Rising
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_Init(&EXTI_InitStructure);


   EXTI_InitStructure.EXTI_Line=EXTI_Line12; //ÖÐ¶ÏÏß±àºÅ È¡Öµ·¶Î§ EXTI_Line0~EXTI_Line15
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Rising; //´¥·¢Ä£Ê½ ÏÂ½µÑØ´¥·¢Falling ÉÏÉýÑØ´¥·¢Rising
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_Init(&EXTI_InitStructure);

EXTI_InitStructure.EXTI_Line=EXTI_Line13; //ÖÐ¶ÏÏß±àºÅ È¡Öµ·¶Î§ EXTI_Line0~EXTI_Line15
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Rising; //´¥·¢Ä£Ê½ ÏÂ½µÑØ´¥·¢Falling ÉÏÉýÑØ´¥·¢Rising
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_Init(&EXTI_InitStructure);

EXTI_InitStructure.EXTI_Line=EXTI_Line14; //ÖÐ¶ÏÏß±àºÅ È¡Öµ·¶Î§ EXTI_Line0~EXTI_Line15
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Rising; //´¥·¢Ä£Ê½ ÏÂ½µÑØ´¥·¢Falling ÉÏÉýÑØ´¥·¢Rising
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_Init(&EXTI_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn; //Ê¹ÄÜÍâ²¿Í¨µÀ 0-4 , 5-9¶ÔÓ¦ EXTI9_5_IRQHandler, 10-15¶ÔÓ¦ EXTI15_10_IRQHandler?
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

}

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